KimaCell® CMC FP6000 sodium carboxymethyl cellulose is made through carboxymethylation. Carboxymethyl cellulose belongs to cellulose ether, which is a loose white or yellowish powder, odorless, tasteless, non-toxic, and easily soluble in water. Pure carboxymethyl cellulose has no practical value, but its sodium salt is actually used to thicken and protect colloid. The production method of carboxymethyl cellulose is to react cellulose with sodium hydroxide to produce alkali cellulose, and then use monochloroacetic acid for carboxymethylation. The concentration of sodium hydroxide should be controlled during the reaction. If the concentration is high, the reaction will be fast and the side reaction will be few. The quality of carboxymethyl cellulose is determined by the degree of substitution, degree of polymerization, homogeneity and purity. The degree of substitution refers to the average number of carboxymethyl groups contained in each glucose residue of cellulose macromolecules, generally 0.65-0.85; The degree of polymerization is generally 200~1000. The dilute solution of carboxymethyl cellulose has the characteristics of polyelectrolyte.
|Chemical name||Sodium Carboxymethyl Cellulose|
|Synonym||Cellulose gum, Carboxymethyl Cellulose, derivative of cellulose, Carboxymethylcellulose sodium salt, Na CMC, Sodium cellulose glycolate, Sodium CMC|
|Product Grade||CMC FP6000|
|Solubility||Water Soluble Cellulose ether|
|Physical form||White to off-white cellulose powder|
|Appearance||White to creamy, free flow odorless powder|
|Viscosity ( 1%, Brookfield, 25℃)||6000-7000 cps|
|Degree of Substitution||0.75-0.90|
|Purity (dry basis)||Min97%|
|Loss on drying (moisture)||Max. 8.0%|
|Particle size||Min.99.0% pass through 100 mesh|
KimaCell® CMC FP6000 sodium carboxymethyl cellulose as a protective colloid can improve the stability of the lotion polymerization system in a wide range of PH values, enable pigments, fillers and other additives to be evenly dispersed in the coating, so that the coating has excellent pigment adhesion effect, and can also significantly improve the viscosity of the latex coating, improve the leveling property of the coating, improve the splash resistance and sagging resistance of the coating, thus improving the construction performance of the coating and improving the work efficiency, Improve the anti shrinkage and crazing properties, and improve the surface quality.